项目名称： 多相永磁同步电机全速度范围无速度传感器控制技术研究

项目编号： No.51477101

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 电工技术

项目作者： 高强

作者单位： 上海交通大学

项目金额： 82万元

中文摘要： 多相永磁同步电机具有转矩脉动小、可靠性高、对电力电子器件容量要求较低等优点，非常适合大功率或可靠性要求高的场合,如多电飞机﹑电动汽车﹑舰船推进等。多相电机的无速度传感器控制取消了易受干扰的速度传感器，可以进一步提高系统的可靠性。目前多相电机的无速度传感器控制方法多适用于中﹑高速段，而适于低速段的方法还停留在理论探讨阶段。本项目将研究一种多相永磁同步电机从零速到高速运行的无速度传感器控制新方法。这种新的无位置传感器控制方法利用多相变流器的空间电压调制波形激励多相永磁电机的饱和凸极效应，结合多相电机的多维空间分解，实现此类电机高性能的无速度传感器运行。项目将研究考虑凸极效应后多相永磁同步电机的数学建模，探索在多相永磁电机的基波空间和谐波空间利用多相变流器的空间电压调制波形进行从零速到额定速范围内位置估测的原理和实现方法，最后将搭建一个多相永磁电机的实验平台，并在平台上对位置估测原理进行验证。

中文关键词： 无速度传感器控制；多相永磁同步电机；空间矢量脉宽调制

英文摘要： Thanks to their low torque ripple , high reliability, and lower power rating requirement to individual power electronic devices, multi-phase permanent magnet synchronous machines (PMSM) have gained more and more attention in high power or safety-crucial applications, such as more electric aircraft, electric vehicle, ship propulsion,etc .Meanwhile, the sensorless control of a multi-phase machine aims to remove the position sensor, which is susceptible to electro-magnetic noise, and therefore can further enchance the reliablity of the drive. Currently most of the methods for multi-phase motor sensorless control are best suitable for medium or high speeds, and the methods for zero and low speeds are in their early stage of investigation. To this end, a novel sensorless control method for multi-phase PMSMs that can estimate the rotor position from zero to high speeds is proposed here.Along with the space decomposition approach, the new method makes use of the natural space vector pulse width modulation (SVPWM) waveforms of a multi-phase converter for excitation of the saturaton saliency within a multi-phase PMSM,so as to realize its high performance sensorless control .The research will start from the modelling of a multi-phase PMSM considering its saturation saliency effect.Then the theory and implementation method of employing the SVPWM waveform to estimate the rotor position both in the fundamental space plane and in the harmonic space plane of the machine will be studied. Finally a multi-phase PMSM test bench will be set up to validate the proposed position estimation theory,and its full speed range sensorless control under different loading conditions will be demonstrated.

英文关键词： Sensorless control;Multi-phase PMSM;SVPWM